package com.atguigu.gulimall.order.config;

import com.atguigu.gulimall.order.entity.OrderEntity;
import com.rabbitmq.client.Channel;
import org.springframework.amqp.core.*;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

@Configuration
public class MyMQConfig {



//    @Bean Bingding ， Que , Exhcange

    /**
     * 容器中的组件 Bingding ， Que , Exhcange 都会自动创建（前提是RabbitMQ没有的情况）
     * RabbitMQ 只要有。@Bean声明属性发生变化也不会覆盖，只能手动删除
     * @return
     */
    @Bean
    public Queue orderDelayQueue(){
        Map<String,Object> arguments = new HashMap<>();
        /**
         * x-dead-letter-exchange: order-event-exchange
         * x-dead-letter-routing-key: order.release.order
         * x-message-ttl:60000
         */
        arguments.put("x-dead-letter-exchange","order-event-exchange");
        arguments.put("x-dead-letter-routing-key","order.release.order");
        arguments.put("x-message-ttl",60000);
        //String name, boolean durable, boolean exclusive, boolean autoDelete, Map<String, Object> arguments
        //名字、持久化、排他的、自动删除的、自定义属性
        Queue queue = new Queue("order.delay.queue",true,false,false,arguments);

        return queue;
    }
    @Bean
    public Queue orderReleaseOrderQueue(){
        Queue queue = new Queue("order.release.order.queue",true,false,false);
        return queue;
    }
    @Bean
    public Exchange orderEventExchange(){
//        String name, boolean durable, boolean autoDelete, Map<String, Object> arguments
        //名字、持久化、自动删除
        return new TopicExchange("order-event-exchange",true,false);
    }
    @Bean
    public Binding orderCreateOrderBinding(){
        //String destination, Binding.DestinationType destinationType, String exchange, String routingKey, Map<String, Object> arguments
        //目的地，目的地的类型，那个交换机跟队列绑定的，路由键,参数
        return new Binding("order.delay.queue",
                                Binding.DestinationType.QUEUE,
                        "order-event-exchange",
                    "order.create.order",
                            null);
    }
    @Bean
    public Binding orderReleaseOrderBinding(){
        return new Binding("order.release.order.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.release.order",
                null);
    }

    /**
     * 订单释放直接和库存释放进行绑定
     */
    @Bean
    public Binding orderReleaseOtherBinding(){
        return new Binding("stock.release.stock.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.release.other.#",
                null);
    }


    /**
     * 秒杀消峰队列
     */
    @Bean
    public Queue orderSeckillOrderQueue(){
        return new Queue("order.seckill.order.queue",true,false,false);
    }
    /**
     * 秒杀消峰队列绑定关系
     */
    @Bean
    public Binding orderSeckillOrderQueueBinding(){
        return new Binding("order.seckill.order.queue",
                Binding.DestinationType.QUEUE,
                "order-event-exchange",
                "order.seckill.order",
                null);
    }

}
